Perhaps you should try some spelling variations:
"con duong trinh snippets" » "con dong trinh snippets", "con duong tinh snippets", "con chuong trinh snippets", "van duong trinh snippets", "con duong trinh slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("con duong trinh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con duong trinh snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
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